Seal structure for cable, and seal member

Abstract

A seal structure for a cable includes a cable in which first to fourth electrical wires are enveloped by a sheath, the first to fourth electrical wires extending out from an end portion of the sheath, a rubber plug that is fitted around the end portion of the sheath, and an inner support member arranged inside the end portion of the sheath.

The invention claimed is: 
     
       1. A seal structure for a cable, comprising:
 a cable in which an electrical wire is enveloped by a sheath, the electrical wire extending out from an end portion of the sheath; 
 a rubber plug that is fitted around the end portion of the sheath; and 
 an inner support member having a support portion arranged inside the end portion of the sheath. 
 
     
     
       2. The seal structure for a cable according to  claim 1 ,
 wherein the support portion has a support wall extending inward along the sheath. 
 
     
     
       3. The seal structure for a cable according to  claim 1 ,
 wherein an outer support member that presses the rubber plug inward is fitted around the rubber plug. 
 
     
     
       4. The seal structure for a cable according to  claim 1 , wherein cable includes a plurality of the electrical wires, the plurality of electrical wires extending out from the end portion of the sheath, and the rubber plug has a plurality of though-holes for passage of the plurality of electrical wires respectively. 
     
     
       5. The seal structure for a cable according to  claim 4 ,
 wherein the inner support member has a plurality of guide holes for passage of the plurality of electrical wires respectively, and 
 the plurality of guide holes are arranged at positions that respectively correspond with the plurality of through-holes. 
 
     
     
       6. A seal member for attachment to a cable in which an electrical wire is enveloped by a sheath, the electrical wire extending out from an end portion of the sheath, the seal member comprising:
 a rubber plug that is fitted around the end portion of the sheath; and 
 an inner support member having a support portion arranged inside the end portion of the sheath. 
 
     
     
       7. The seal member according to  claim 6 ,
 wherein the support portion has a support wall extending inward along the sheath. 
 
     
     
       8. The seal member according to  claim 6 ,
 wherein an outer support member that presses the rubber plug inward is fitted around the rubber plug. 
 
     
     
       9. The seal member according to  claim 6 ,
 wherein the cable includes a plurality of the electrical wires, the plurality of electrical wires extending out from the end portion of the sheath, and 
 the rubber plug has a plurality of through-holes for passage of the plurality of electrical wires respectively. 
 
     
     
       10. The seal member according to  claim 9 ,
 wherein the inner support member has a plurality of guide holes for passage of the plurality of electrical wires respectively, and 
 the plurality of guide holes are arranged at positions that respectively correspond with the plurality of through-holes.